Pneumatic tire

US8973631B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-8973631-B2
Application numberUS-201113270666-A
CountryUS
Kind codeB2
Filing dateOct 11, 2011
Priority dateOct 13, 2010
Publication dateMar 10, 2015
Grant dateMar 10, 2015

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

In a pneumatic tire in which the sipe extending in a direction crossing a tire circumferential direction is provided on a land portion (block) of a tread portion, a wide part having a wide groove width is provided at three or more places in a length direction of the sipe, and the wide part and a narrow part are formed alternately on a tread surface along the sipe length direction. A plurality of the wide parts are extended in a sipe depth direction from the tread surface, and are provided by changing extended lengths in the sipe depth direction.

First claim

Opening claim text (preview).

What is claimed is: 1. A pneumatic tire, comprising: a sipe extending in a direction crossing a tire circumferential direction, provided on a land portion of a tread portion, wherein the sipe comprises a wide part having a wide groove width at three or more places in a length direction of the sipe, the wide part and a narrow part having a small groove width are alternately formed on a tread surface along the length direction of the sipe, and a plurality of the wide parts extend…

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What does patent US8973631B2 cover?
In a pneumatic tire in which the sipe extending in a direction crossing a tire circumferential direction is provided on a land portion (block) of a tread portion, a wide part having a wide groove width is provided at three or more places in a length direction of the sipe, and the wide part and a narrow part are formed alternately on a tread surface along the sipe length direction. A plurality o…
Who is the assignee on this patent?
Ohashi Toshiyuki, Toyo Tire & Rubber Co
What technology area does this patent fall under?
Primary CPC classification B60C11/1281. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Mar 10 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).